QA/G-8 provides non-mandatory guidance to assist users in verifying and validating environmental data. The guidance discusses alternative approaches to data validation, including examples of statistics-based validation techniques, and options for verifying that the validated data satisfy relevant claims about their authenticity and quality.

The Annual Report/Work Plan summarizes the quality assurance activities that Region 10 has conducted over the past year and projects the QA needs for the upcoming year. This report is sent to the Quality Assurance Management Staff (QAMS) for use in preparation of the Agency's annual quality assurance report.

This guidance document describes key principles and best practices for Brownfields site assessment quality assurance and quality control based on program experience. It is intended as a reference for people involved in the Brownfields site assessment process. This document follows the EPA QA/R-5 and QA/G-5 format listed above.

This template and guide were developed and written by the Native American Fish and Wildlife Society, Cook Inlet Keeper, and the University of Alaska Anchorage Environmental and Natural Resources Institute. These documents have been reviewed and approved by EPA and ADEC.

This document contains Standard Operating Procedures used by EPA Region 4 for sample collection and other field activities. This document may be useful to others, as example Standard Operating Procedures for similar activities. Any organization that uses these Standard Operating Procedures assumes responsibility for their content and applicability to their specific situation.